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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 64.87°N
  • 23.25°W

  • 647 m
    2122 ft

  • 370020
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Helgrindur.

The Global Volcanism Program has no Weekly Reports available for Helgrindur.

The Global Volcanism Program has no Bulletin Reports available for Helgrindur.

Basic Data

Volcano Number

Last Known Eruption



Unknown - Evidence Credible

647 m / 2122 ft


Volcano Types

Pyroclastic cone(s)

Rock Types

Basalt / Picro-Basalt

Tectonic Setting

Rift zone
Oceanic crust (< 15 km)


Within 5 km
Within 10 km
Within 30 km
Within 100 km

Geological Summary

Helgrindur (also known as Lysuhóll or Lysukard) is one of Iceland's smallest volcanic systems. It consists of a chain of small alkali olivine basaltic cinder cones and vents along a WNW-ESE line cutting across the central Snaefellsnes Peninsula in western Iceland. The slightly arcuate line of Quaternary vents extends to the northern coast of the peninsula. Helgrindur is the central of three volcanic systems occupying the peninsula. The latest eruption is undated, but the volcanic field has been active during the Holocene.


The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Gudmundsson A T, 1986b. Iceland-Fires. Reykjavik: Vaka-Helgafell, 168 p.

Jakobsson S P, 1972. Chemistry and distribution pattern of recent basaltic rocks in Iceland. Lithos, 5: 365-386.

Johannesson H, 1982. Summary of the geology of Snaefellsnes. Arbok Ferdafelags Islands 1982, p 151-172 (in Icelandic).

Johannesson H, Saemundsson K, 1998. Geological map of Iceland, 1:500,000. Tectonics. Icelandic Inst Nat Hist, Reykjavik.

Kjartansson G, 1968. Geological map of Iceland, sheet 2, west-central Iceland. Icelandic Museum Nat Hist, 1:250,000 geol map.

Steinthorsson S, et al., 2002. Catalog of Active Volcanoes of the World - Iceland. Unpublished manuscript.

Thordarson T, Hoskuldsson A, 2008. Postglacial eruptions in Iceland. Jokull, 58: 197-228.

The Global Volcanism Program is not aware of any Holocene eruptions from Helgrindur. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Helgrindur page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Lysuskard | Lysuhóll


Feature Name Feature Type Elevation Latitude Longitude
Lysuhyrna Vent 64° 51' 0" N 23° 11' 0" W
Raudakular Cone 540 m 64° 52' 0" N 23° 15' 0" W

Photo Gallery

Lysuhöll, Iceland's smallest volcanic system, consists of a chain of small cinder cones and vents along a WNW-ESE line cutting diagonally across the Snæfellsnes Peninsula in the center of the photo. The cones and vents of the Lysuhöll volcanic system, seen here from the ENE, are located between the snow-covered Helgrindur mountains in the foreground and the glacier-covered Snæfellsjökull volcano in the background. The latest eruptions from Lysuhöll occurred during the Holocene.

Photo by Thorvaldur Bragason, Iceland Geodetic Survey (courtesy of Richie Williams, U.S. Geological Survey).
An aerial view looking east down the Snaefellsnes Peninsula shows the Bláfeldarhraun lava flow in the foreground, which originated from a pyroclastic cone in the highlands. The cone and flow are part of the Helgrindur (Lysuhóll) volcanic system, which consists of a chain of small alkali olivine basaltic cinder cones and vents along a WNW-ESE line cutting across the central Snaefellsnes Peninsula.

Photo by Oddur Sigurdsson, 1983 (Icelandic National Energy Authority).
The terminus of the Bláfeldarhraun lava flow is seen in the middle ground to the left of the farm houses. The flow originated from the pyroclastic cone on the left-center horizon and descended in the large lava cascade visible in the center of this view from the south. The flow is one of several Holocene lava flows of the Helgrindur (Lysuhóll) volcanic system on the Snaefellsnes Peninsula.

Photo by Lee Siebert, 2008 (Smithsonian Institution).

Smithsonian Sample Collections Database

There are no samples for Helgrindur in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites

Large Eruptions of Helgrindur Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
MODVOLC - HIGP MODIS Thermal Alert System Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.
MIROVA Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.